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      1 /*
      2  * Copyright (C) 2012 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.inputmethod.keyboard.internal;
     18 
     19 public final class KeyPreviewDrawParams {
     20     // The graphical geometry of the key preview.
     21     // <-width->
     22     // +-------+   ^
     23     // |       |   |
     24     // |preview| height (visible)
     25     // |       |   |
     26     // +       + ^ v
     27     //  \     /  |offset
     28     // +-\   /-+ v
     29     // |  +-+  |
     30     // |parent |
     31     // |    key|
     32     // +-------+
     33     // The background of a {@link TextView} being used for a key preview may have invisible
     34     // paddings. To align the more keys keyboard panel's visible part with the visible part of
     35     // the background, we need to record the width and height of key preview that don't include
     36     // invisible paddings.
     37     public int mPreviewVisibleWidth;
     38     public int mPreviewVisibleHeight;
     39     // The key preview may have an arbitrary offset and its background that may have a bottom
     40     // padding. To align the more keys keyboard and the key preview we also need to record the
     41     // offset between the top edge of parent key and the bottom of the visible part of key
     42     // preview background.
     43     public int mPreviewVisibleOffset;
     44 }
     45